%query: reverse(i,o). %% reverse(Xs, Ys) :- Ys is the reverse of the list Xs. %% %TWTYPES :- type reverse(list,list). reverse(X1s, X2s) :- reverse(X1s, [], X2s). %TWTYPES :- type reverse(list,list,list). reverse([], Xs, Xs). reverse([X | X1s], X2s, Ys) :- reverse(X1s, [X | X2s], Ys). /*TWDESC reverse(Xs, Ys) :- Ys is the reverse of the list Xs. */ /*TWTYPES list([]). list([X|Xs]) :- poly(X), list(Xs). poly(dummy). */ /*TWDEMO selected_norms([list,poly]). query(reverse(b,f,f,f,f,f)). query(reverse(f,b,f,f,f,f)). query(reverse(b,f,f,f)). query(reverse(f,b,f,f)). */
content may be truncated. 'popout' for larger text window.
